Still at wilderness Fred MCI are difficult to put slides in. Best someone that has been successful speak up here.!! Roof raise also? I will look for members name that did them in KY and get back to you. Message gone from him but will keep looking.

Your best bet and he is not that far from you is go spend a few hours with Gary Bennett at B & B Coach in Vegas he done MCI before and he will give the correct info and if you decide to proceed he will sell the slide mechanism I think they are in the 3 to 4 thousand range

HWH's website is crappy, but has lots of information on different slide mechanisms if you look hard enough. Which is not to say that you have to buy an off-the-shelf system - there's nothing in any of them that a decent fabricator can't make for themselves. And bear in mind that the slide mechanism itself is only one aspect - the structural work and sealing arrangements are a biggest part of the job in my opinion.